package com.foxire.filter;

import jakarta.servlet.*;
import jakarta.servlet.annotation.WebFilter;

import java.io.IOException;

//@WebFilter(urlPatterns = "/*")
public class DemoFilter implements Filter {
    @Override // 初始化方法，只调用一次
    public void init(FilterConfig filterConfig) throws ServletException {
        System.out.println("初始化方法");
    }

    @Override
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
        System.out.println("拦截到请求。。。放行前的逻辑");
        // 放行
        filterChain.doFilter(servletRequest, servletResponse);

        System.out.println("拦截到请求。。。放行后的逻辑");
    }

    @Override // 销毁方法，调用一次
    public void destroy() {
        System.out.println("销毁方法");
    }
}
